http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53631
Bug #: 53631 Summary: [C++11] <regex> is unimplemented Classification: Unclassified Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: r...@gcc.gnu.org This is a placeholder bug for the missing <regex> functionality. It's documented as missing in http://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.2011 The whole of Clause 28 is partially supported or not supported at all. Until someone works on it there is really no point reporting bugs against individual features.